Fyodor Isidorovich Kuznetsov (; 29 September 1898 – 22 March 1961) was a Colonel General and military commander in the Soviet Union. Biography Born to a peasant family in Mogilev Governorate (pre
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6fcc25fc8735d33e95d20093e954e16dd818a9e2013981ae2e675d084645c0. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4fc9344-b609-4d30-9e05-8b24a9ebc95f.json and https://artists.proofprofile.net/proofs/artist/f4fc9344-b609-4d30-9e05-8b24a9ebc95f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).